What will be the output of the following C++ code?
#include <iostream>
using namespace std;
class Foo
{
public:
Foo(int i = 0){ _i = i;}
void f()
{
cout << "Executed"<<endl;
}
private:
int _i;
};
int main()
{
Foo *p = 0;
p -> f();
}
#include <iostream>
using namespace std;
class Foo
{
public:
Foo(int i = 0){ _i = i;}
void f()
{
cout << "Executed"<<endl;
}
private:
int _i;
};
int main()
{
Foo *p = 0;
p -> f();
}A. Executed
B. Error
C. Runtime error
D. 10
Answer: Option A
This Question Belongs to C Plus Plus Programming >> C Plus Plus Miscellaneous
What does the 'sizeof' operator return in C++?
A. Size of a data type in bits
B. Size of a data type in bytes
C. Size of a variable in bytes
D. Size of a variable in bits
What is the purpose of the 'static' keyword in C++?
A. To declare a variable with dynamic storage duration
B. To declare a constant
C. To declare a variable with external linkage
D. To declare a variable with static storage duration
What is the difference between '++i' and 'i++' in C++?
A. None of the above
B. They both have the same effect
C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it
D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it
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